#!/user/bin/env python3
# -*- coding: utf-8 -*-

list1 = [{"date": "09-28", "money": 90}, {"date": "09-27", "money": 200}]
list2 = [{"date": "09-28", "money": 100}, {"date": "09-27", "money": 100}]
all_list = list2 + list1
data_dict = {}
for item in all_list:
    if item["date"] in data_dict:
        data_dict[item["date"]] += item["money"]
    else:
        data_dict[item['date']] = item['money']

print(data_dict)
